The prefab industry has changed a lot in the last few years.  Case in point, ZETA Communities, a producer of net-zero energy multifamily housing came on to the scene in the beginning of 2008.  In something like 3-4 years, they’ve built up a lean manufacturing facility with 91,000 square feet in Sacramento that’s just incredible.

The process is shown in this video.  If you’re distracted by the action, here’s the text:

ZETA Module Manufacturing: A Day in the Life

…twenty-one workstations
…quality at every level
…6″ thick walls
…lean manufacturing
…tight building envelope
…sustainable insulation
…modules 90% complete in factory
…no weather delays

Not all prefab systems or modular factories are the same, but perhaps this gives you an idea what’s going on behind the scenes.  With this kind of technology and innovation, the average home of tomorrow is destined to be a lot different than the average home of today.